To provide a lumbar support device which is compact and excellent in cushion property.SOLUTION: A lumbar support device 23 comprises: a base pat 24 attached to a side member 8 of a back frame 7; and a body support part 25 integrated to a lower end of the base part 24. The body support part 25 comprises: a pad part 26 which contact the back plate 11 from a rear side; and an intermediate part 27 for coupling the pad part 26 and the base part 24, the tip end part of the intermediate part 27 is a curve part 27a which can be elastically deformed. Therefore, the body support part 25 is formed into a collapsed C-shape in plan view. A rear surface of the intermediate part 27 has a knob part 28 which is protruded rearward. Since the curve part 27a is deformed by body pressure, excellent cushion property is acquired. In addition, the pad part 26 can be easily made to come close to a side member 8.SELECTED DRAWING: Figure 6

    【課題】コンパクトでクッション性に優れたランバーサポート装置を提供する。【解決手段】ランバーサポート装置23は、背フレーム7のサイドメンバー8に取付けられるベース部24と、ベース部24の下端に一体に設けた身体支持部25と有している。身体支持部25は、背板11に後ろから当たるパッド部26と、パッド部26とベース部24とを繋ぐ中間部27とから成っており、中間部27の先端部は、弾性変形可能な湾曲部27aになっている。従って、身体支持部25は、平面視でC字を潰したような形態になっている。中間部27の後面には、摘み部28を後ろ向きに突設している。湾曲部27aが体圧で変形するため、クッション性に優れている。パッド部26をサイドメンバー8に寄せることも、容易に実現できる。【選択図】図6


    Access

    Download


    Export, share and cite



    Title :

    LUMBAR SUPPORT DEVICE FOR CHAIR


    Additional title:

    椅子のランバーサポート装置


    Contributors:

    Publication date :

    2019-11-21


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    A47C Stühle , CHAIRS / B60N SEATS SPECIALLY ADAPTED FOR VEHICLES , Sitze besonders für Fahrzeuge ausgebildet



    Chair back with adjustable lumbar support

    DONOVAN ROBERT DEAN / WHITE NIKKI OLEN | European Patent Office | 2017

    Free access

    DYNAMIC CHAIR BACK LUMBAR SUPPORT SYSTEM

    MACHAEL JAY R / HAHN JESSE / SUSIE COREY et al. | European Patent Office | 2015

    Free access

    Chair back with adjustable lumbar support

    DONOVAN ROBERT DEAN / WHITE NIKKI OLEN | European Patent Office | 2019

    Free access

    Chair with telescopic lumbar cushion

    LIAO SHANGJUN | European Patent Office | 2015

    Free access

    CHAIR AND SMART LUMBAR PILLOW SYSTEM FOR CHAIR

    YAN HAN / ZENG QI | European Patent Office | 2019

    Free access